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Commitments and Contingencies (Narrative) (Details) R$ in Thousands, $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended | 60 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
May 15, 2017 | May 15, 2017 | Dec. 31, 2011 | Apr. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2016 | Dec. 31, 2018 BRL (R$) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 BRL (R$) | Dec. 31, 2017 USD ($)
Short-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product warranty and recall accrual |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,283 |  | $ 3,112
Cash proceeds related to damaged inventory and incremental costs |  |  |  |  |  | $ 241 | $ 500 |  |  |  |  |  |  |  |  |  |
Cash proceeds within cash flows from investing activities |  |  |  |  |  | 1,403 | 711 |  |  |  |  |  |  |  |  |  |
Estimated insurance recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,644
Cost of Goods Sold [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Insurance recoveries |  |  |  |  |  |  | 189 |  |  |  |  |  |  |  |  |  |
Selling, General and Administrative Expenses [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on Business Interruption Insurance Recovery |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |  |  |
Insurance recoveries |  |  |  |  |  |  | $ 1,923 |  |  |  |  |  |  |  |  |  |
Control Devices [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental remediation accrued undiscounted liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 111 |  | 265
Accrued Expenses and Other Current Liabilities [Member] | Control Devices [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental remediation accrued undiscounted liability |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 111 |  | 253
Letter of Credit [Member] | Control Devices [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,489 |  |
PST Eletronica Ltda [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage ownership in consolidated subsidiary | 74.00% | 74.00% | 74.00% | 74.00% | 74.00% |  |  | 74.00% | 74.00% | 74.00% | 74.00% | 74.00% | 74.00% |  |  |  |
PST Eletronica Ltda [Member] | Civil, labor and other tax contingencies [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, estimate of possible loss |  |  |  |  |  |  |  |  |  |  |  |  |  | R$ 29,700 | $ 7,600 | R$ 33,800 | $ 10,200

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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